global class UpdateSalesYszxdetailsBatch implements Database.Batchable<sObject> {
    
    global UpdateSalesYszxdetailsBatch() {
    }
    
    global Database.QueryLocator start(Database.BatchableContext BC) {
        return Database.getQueryLocator([select Id from ExWarehouse__c where Account__c = null]);
    }

    global void execute(Database.BatchableContext BC, List<sObject> s) {
        // 其他逻辑
       // update s;
    }
    
    global void finish(Database.BatchableContext BC) {
        
    }
    
}